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drm/i915/skl: Add a debugfs file to dump the DDB allocation

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v2: minor conflict in i915_debugfs.c
v3: Rebase on top of the for_each_pipe() change adding dev_priv as first
    argument.
v4: minor conflict in the i915_debugfs_files array
v5: minor conflict in the i915_debugfs_files array

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2014-11-04 17:06:51 +00:00 committed by Daniel Vetter
parent 97e94b22ed
commit c5511e44e8
1 changed files with 37 additions and 0 deletions
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37
drivers/gpu/drm/i915/i915_debugfs.c
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@ -2679,6 +2679,42 @@ static int i915_wa_registers(struct seq_file *m, void *unused)
return 0;
}
static int i915_ddb_info(struct seq_file *m, void *unused)
{
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct skl_ddb_allocation *ddb;
struct skl_ddb_entry *entry;
enum pipe pipe;
int plane;
drm_modeset_lock_all(dev);
ddb = &dev_priv->wm.skl_hw.ddb;
seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
for_each_pipe(dev_priv, pipe) {
seq_printf(m, "Pipe %c\n", pipe_name(pipe));
for_each_plane(pipe, plane) {
entry = &ddb->plane[pipe][plane];
seq_printf(m, " Plane%-8d%8u%8u%8u\n", plane + 1,
entry->start, entry->end,
skl_ddb_entry_size(entry));
}
entry = &ddb->cursor[pipe];
seq_printf(m, " %-13s%8u%8u%8u\n", "Cursor", entry->start,
entry->end, skl_ddb_entry_size(entry));
}
drm_modeset_unlock_all(dev);
return 0;
}
struct pipe_crc_info {
const char *name;
struct drm_device *dev;
@ -4252,6 +4288,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_shared_dplls_info", i915_shared_dplls_info, 0},
{"i915_dp_mst_info", i915_dp_mst_info, 0},
{"i915_wa_registers", i915_wa_registers, 0},
{"i915_ddb_info", i915_ddb_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)